Pith Number

pith:FCJVR2B4

pith:2013:FCJVR2B4NERMETREMUWFCPKCSX

not attested not anchored not stored refs pending

On two Algorithmic Problems about Synchronizing Automata

Mikhail V. Berlinkov

arxiv:1312.2226 v4 · 2013-12-08 · cs.FL · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCJVR2B4NERMETREMUWFCPKCSX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:20:22.650509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

289358e83c6922c24e24652c513d4295eee223f8ff4d66f1c18904330fd65a0e

Aliases

arxiv: 1312.2226 · arxiv_version: 1312.2226v4 · doi: 10.48550/arxiv.1312.2226 · pith_short_12: FCJVR2B4NERM · pith_short_16: FCJVR2B4NERMETRE · pith_short_8: FCJVR2B4

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FCJVR2B4NERMETREMUWFCPKCSX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 289358e83c6922c24e24652c513d4295eee223f8ff4d66f1c18904330fd65a0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24852ba4ccc8808d8258a92850d10d86616c79bcdad67d77f140cfa3bb4fb27f",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-12-08T15:24:47Z",
    "title_canon_sha256": "26d4e373fe3fe93e70ca8a217d5abafc16b460a2599b5f793bb82ea5d2b08b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2226",
    "kind": "arxiv",
    "version": 4
  }
}